A submarine springs a leak while well into Japanese waters. An engineer takes on the dangerous mission of repairing it.

A docudrama about a mission during World War II by the submarine USS Trout involving transporting a large amount of gold and silver.

The USS Thresher is caught at the end of a Japanese destroyer's grappling hook and attempts to shake itself loose.

After a damaged submarine is forced to surface, all hands are ordered by the captain to abandon ship, but he stays aboard.

A submarine is ordered to slip into Japanese-occupied Filipino waters to spirit out some important passengers from Corregidor.

The USS Bergall, which has been badly damaged, is trying to get to port but three Japanese patrol boats are making it difficult.

The USS Batfish is ordered to intercept some enemy submarines that are carrying very important Japanese officials.

A submarine trying to rescue downed American pilots comes under attack from Japanese destroyers.

On the hunt for a Japanese convoy, the crew of the USS Gato discovers that an unexploded enemy depth charge has landed on its deck.

U.S. subs are about to close in on a Japanese convoy. What they don't know is that aboard one of the ships are Allied POWs.

The commander of the submarine USS Tirante may lose his target in the shallow waters of a Japanese-held harbor if he doesn't surface.

With morale low, USS Tang stands by for rescue downed American pilots during the attack on the Truk islands.

The final mission of the USS Wahoo.

Darter and Dace during the Battle of Leyte Gulf.

A submarine suffers a series of disasters: a broken prop, damaged instruments and an explosion onboard.

The USS Seahorse is in big trouble: it's deep in Japanese waters, it's been badly damaged and is in danger of being destroyed by a barrage of enemy depth charges.

In October of 1944. 100 miles off Japan. Salmon is damaged in a depth charge attack and must remain surfaced.

The crew of the USS Crevalle takes aboard a Filipino woman about to give birth to a baby.

A sub being hunted by Japanese ships is forced to settle on the bottom of the ocean to escape detection, but it has been badly damaged and if it stays on the bottom for too long it may not be able to surface.

The Squailfish sinks a Japanese escort carrier, but that only seems to be what sets off a string of bad luck that begins to plague the sub.

Prior to the invasion, the USS Grouper transports Australian raiders and their native guides to a hidden cove on New Britain.

When his ship's attempts to sink Japanese shipping fail, a seaman with an interest in photography produces evidence of faulty design.

The USS Sea Dragon's oxygen tanks are exhausted. Death by suffocation or enemy gun fire seems inevitable.

A docudrama about a submarine mission during World War II, the rescue by the USS Narwhal of escaped POW survivors of Bataan from the island of Mindanao.

A docudrama about the submarine USS Perch on a mission during The Korean War to deliver British Royal Marines on a secret commando raid.

Concerns the Gato Class WWII Sub U.S.S. Barb (SS-220) and her Final WWII Patrol.

A broken propeller, an internal explosion and damaged instruments plague an outmoded American submarine assigned to attack Jap transports.

A docudrama about the submarine USS Gar on a secret mission with guerillas during World War II.

The successes and the sinking of the USS Flyer and the dozen who survived after 17 hours in the water and then had to sail to additional islands before finding food and rescue.

Enemy bombers attack the U.S.S. Starfish, and a hatch cover sticks as it attempts to submerge.